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aki_23
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Homework Statement
A stone tied to a string with length 1.10 m is whirled in a circle both horizontally and vertically with the same constant speed. In the vertical case the maximum tension in the string is 15.0% larger than the tension that exists when the string was horizontal. Determine the speed of the stone.
Homework Equations
a = v2/r
The Attempt at a Solution
for horizontal, my equation was Fc = mv2/r
for vertical, my equation was Fc = Ft - mg, because at the bottom of the vertical circle fg is present
mv2/r = 0.15Ft - mg
I don't know how to take this further